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1 . The main reason ________ monarch butterflies are endangered is ________ lots of places ________ used to be home to them have been seriously destroyed.
| A．why; because; where | B．that; because; where |
| C．why; that; that | D．why; that; where |
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2023-04-10更新
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4卷引用：黑龙江省大庆实验中学2022-2023学年高一下学期阶段考试英语试卷
